Improvement in rotary churns



AUlvITnn STATES PATENT Ofrrron.

WILIIAM KNAGGs, or RIcHvInw, ONTARIO, CANADA.

IMPROVEMENT IN ROTARV CHURNS.

Specification forming part of Letters Patent No. [$3,450. dated July 24,1877 application filed March 24, 1877.

To all whom it may concern Be it known that I, WILLIAM KNAGGs, ofRichview, in the county of Peel, Province of Ontario, and Dominion ofCanada, have invented a new and useful Improvement in Ghurn- Dashers, ofwhich the following is a specification:

Figure 1 is a cross-section of my improved churn-dasher, taken throughthe line .fr Fig. 2. Fig. 2 is a side view of the dasher. Fig. 3 is adetail view of the dasher-rod fastener.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved churn-dasherwhich shall be so constructed as to bring the butter very quickly, andgather it quickly and thoroughly.

The invention consists in the dasher formed by the combination of thetwo end bars, thetwo pairs of concaved bars, the stop-arms, and the twopairs of pivoted bars with each other and with the dasherfrod; and inthe combination of the bearing, the plate, the pivoted latch, and thecatch, with the enlarged and grooved upper part of the dasherrod, ashereinafter fully described.

lA A are the end bars of the dasher, the rear corners of the ends ot'which are rounded ofi', as shown in Fig. l.

To the forward parts of the ends ot' the bars A are attached the ends oftwo bars, B, made in the form of longitudinal sections of a hollowcylinder, and which are placed with their inner edges at a littledistance from each other.

To the end bars A, between the adjacent edges of the bars B, areattached the forward ends of the arms O, the rear ends of which areforked, and provided with projections to serve as stops to the bars D.The bars D are pivoted at the inner corners of their ends to the l armsC, at or near the rear edges ot' the ends ofthe bars A. The bars D aremade of such a Width that, when turned forward, their outer edges mayrest against the rear sides of the inner edges of the bars B, and closethe opening between said bars B. When the bars D are turned back theyrest against the projection of the stop-arms C, and are heldin aninclined position, as shown in Fig. l.

The dasher-rod E is madesquare, passes through square holes in thecenters of the crossbars A, and its end revolves in a step or socketattached to the bottom of the churnbody.

The other end of the rod E is enlarged, passes through a bearing, F,inserted in a hole in the top of the churn-body, and lattached toorformed upon a small plate, Gr, secured to the said top.

The rod E just above the plate Gr has a ringgroove formed in it toreceive the notched edge of the latch H, pivoted at one end to the plateG. The other end of the latch H shuts beneath a keeper, I, also attachedto the said plate G. l

`The upper end of the rod E is squared 0E to receive the eye of thecrank by which the dasher is operated.

By this construction, when the dasher is turned forward the milk isdrawn inwardby the bars B, is forced through the opening' between theirinner edges, and strikes against the inclined bars D, by'which itisdivided and thrown in opposite directions. When the dasher is turnedbackward, the rear sides of the bars B D act as paddles or ladles forgathering the butter. Y

Having thus described my invention, I claim as new and desire t0 secureby Letters Patentl. The dasher formed by the combination of the two barsA, the two pairs of concaved bars B, the stop-arms'G, and the two pairsof pivoted bars D with each other and with the dasher-rod E,substantially as herein shown and described.

2. The combination of the bearing F, the plate G, the pivoted latch H,and the catch I, with the enlarged and grooved upper part ot' the dasherrod E, substantially as herein shown and described.

- WILLIAM KNAGGS. Witnesses:

IsAAo N. YATToN, V THOMAS SToNEHoUsE.

